Abstract
BACKGROUND: It is widely recognized that sports, dance, and other structured extracurricular activities can positively influence children's executive function. However, previous research has not thoroughly examined whether participation in a diverse range of activities aimed at acquiring new skills affects working memory development in children. OBJECTIVE: To investigate the impact of the quantity of extracurricular activities on the development of working memory among 5-7-year-old children. DESIGN: Longitudinal data on working memory development were collected from children aged 5 to 7 years (N = 101). Three assessments of verbal and visual working memory were conducted at ages 5, 6, and 7 years. Information on children's participating in extracurricular activities was obtained through parental surveys. RESULTS: The findings indicate that the number of extracurricular activities in which children participated has a significant positive effect on verbal working memory, with children engaged in multiple types of activities demonstrating a superior ability to retain and reproduce verbal information. Conversely, visual-spatial working memory did not show statistically significant differences based on the number of extracurricular activities. CONCLUSION: These results suggest that increasing access to extracurricular activities may foster verbal working memory, which is an important predictor of subsequent academic success and socialization.